Update Error 20547 in Trend Micro Antivirus for Mac: How to Fix

What Causes Error 20547?

This error occurs when your Trend Micro Antivirus cannot download the necessary updates.

How to Solve Error 20547

Follow these steps to reinstall Trend Micro Antivirus and get rid of the error:

1. Save Your Activation Code:

   Make sure you have your activation code handy. You'll need it to reactivate your antivirus after reinstallation.

2. Remove the Current Antivirus Software:

   Uninstall your current Trend Micro Antivirus application to start fresh.

3. Download the Correct Installer:

   Download the installer that matches your macOS version from the list below:

   • macOS Tahoe (26.0): Download Antivirus for Mac version 11.9.36
   • macOS Sequoia (15.0): Download Antivirus for Mac version 11.8.1283
   • macOS Sonoma (14.0): Download Antivirus for Mac version 11.8.1283
   • macOS Ventura (13.0): Download Antivirus for Mac version 11.8.1283

   If your macOS version is macOS Mojave or older, consider upgrading your Mac to access the latest antivirus features.

4. Install the Antivirus:

   Open the downloaded installer and select the option to Install Trend Micro Antivirus.

5. Follow the Installation Instructions:

   Complete the installation by following the on-screen prompts.

6. Activate Your Antivirus:

   Enter your account information and activation code to activate your Trend Micro protection.